diff --git a/src/core/tests/query.test.tsx b/src/core/tests/query.test.tsx
index dee95ba640..3206665b57 100644
--- a/src/core/tests/query.test.tsx
+++ b/src/core/tests/query.test.tsx
@@ -810,7 +810,6 @@ describe('query', () => {
 
     const observer = new QueryObserver(queryClient, {
       queryKey: key,
-      // @ts-expect-error (queryFn must not return undefined)
       queryFn: () => undefined,
       retry: false,
     })